01 Record
CVE-2026-84302
Discourse: Non-participant moderators can read, edit, and delete PM content through Discourse AI reviewables
MediumPUBLISHEDCNA: GitHub_M
CNA base score4.2 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
02 Description
Discourse: Non-participant moderators can read, edit, and delete PM content through Discourse AI reviewables
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.23% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 14.6% of scored records. A rank, not a probability.
- NVD base score
- 4.2 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
- NVD analysis status
- Deferred. NVD last modified this record on 2026-09-24.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-24 16:49Z1 MO AGO
- Last updated
- 2026-09-24 17:04Z1 MO AGO
- Reserved
- 2026-09-01
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.2)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-862Missing AuthorizationClass
- Data version
- 5.2
- Document digest
- 8178d2dc2c3f346821ed49d76b7e6eaebb88f1dd964ddde2fea466feedf4a6d9
05 Affected products
VendorProductVersionsPlatforms
discoursediscourse< 2026.7.0, >= 2026.6.0-latest, < 2026.6.1, >= 2026.5.0-latest, < 2026.5.2, >= 2026.1.0-latest, < 2026.1.6—
06 References
- github.comhttps://github.com/discourse/discourse/security/advisories/GHSA-3rx9-fqgh-wfpc
- github.comhttps://github.com/discourse/discourse/pull/42091
- github.comhttps://github.com/discourse/discourse/commit/1566d04524c01472375944bbf7b198dd09a99427
- github.comhttps://github.com/discourse/discourse/commit/23488b72a200228e805c4e6d970fbad216d328c5
- github.comhttps://github.com/discourse/discourse/commit/38d10c0e5d1b76540d2860455e0290f8e975c9fd
- github.comhttps://github.com/discourse/discourse/commit/b323702d87cd82c327c116d9566477f3c4f9635f